Whiffletree-hook.



No. 7 l2,26|. Patented Oct. 28, I902.

c. A. CLARK & A. WHEELER.

WHIFFLETBEE HOOK.

(Application filed Mar. 14, 1902.)

No Model.)

/7 Q?" I" v ZM Ma UNITED STATES ATENT OFFICE.

CHARLES A. CLARK AND ARTHUR WHEELER, OF FLINT, MICHIGAN, ASSIGNORS, BYMESNE ASSIGNMENTS, TO JOHN M. HART, OF

FLINT, MICHIGAN.

WHlFFLETREE-HOOK.

SPECIFICATION forming part of Letters Patent N 0. 712,261, dated October28, 1902.

Application filed March 14, 1902. Serial No. 98,176. (No model.)

To a whom it may concern:

Be it known that we, CHARLES A.CLARK and ARTHUR WHEELER, citizens of theUnited States,residing at Flint,in the county of Genesee and State ofMichigan, have in vented new and useful Improvements in Whiffletree-Hooks, of which the following is a specification.

Our invention relates to improvements in whiffletree-hooks; and theobject of the same is to construct a spring-actuated device of thischaracter which will positively hold a tug against slipping E.

The simple and novel construction used by us in carrying out ourinvention is fully describedin this specification and claimed, andillustrated in the accompanying drawings, forming apart thereof, inwhich- Figure 1 is a perspective of a fragment of a whiffletree equippedwith our device. Fig. 2 is a vertical longitudinal section of ourdevice. Fig. 3 is an end elevation of the same.

The numeral 1 designates a housing, which has closed ends 2 and sides 3.The housing 1 is rectangular in cross-section, is open at the bottom 4,and is provided with a flange 5, provided with apertures 5 toaccommodate screws 6 for securing it to. a whiffletree 7. One of theends 2 is pierced by an aperture 8, in which a shaft 9 is journaled,which shaft extends the length of the housing 1 and bears on its innerend, which is threaded, an angular nut 10, which fits snugly thehousing. A stiif spiral spring 11 surrounds the shaft 9 and bears at oneend on the nut and at the other end on the apertured end 2 of thehousing. The outer end of the shaft 9 bears a crank 12, comprising arms13 and 14, respectively perpendicular and parallel to the shaft 9. Twonotches 15 and 16 are formed in the apertured end 2 ofthe casing.Notches are located to be engaged by the arm 13. The

arm 1-1 bears a longer guard-arm 17, which extends at right anglesthereto and is located to come almost in contact with the side of thewhiffletree when the arm 13 engages the notch 15 and to clear thewhiffletree when the arm 13 is engaging the notch 16.

In operation the arm 13 is turned up in position to engage the notch 16,and atug 18, provided with an eye 19, is slipped over the end of thewhiftletree 7. The radial arm 13 is then turned down to engage the notch15,

which will bring the guard-arm 17 in contact with the whiffletree 7 andprevent the slipping 01f of the tug. y

We do not wish to be limited as to details of construction, as these maybe modified in many particulars Without departing from the spirit of ourinvention.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, isp In a whiffletree-hook, the combinationwith a housing constructed to be secured to a whiffietree, of a shaftmounted in said housing Witnesses:

FREDRIC D. CRANE, WM. W. JENNINGS.

